Sheet metal deformation brightener composition

Abstract

An aqueous deformation-detecting brightener composition that can easily detect deformation such as unevenness on the surface of a car body by forming a liquid thin film having low foaming property and excellent glossiness is provided by dissolving a glycol ether compound expressed by the following formula (I) and a surfactant in water R 1 —O—(AO) m —R 2   (I) where “R 1 ” represents an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 1 to 9 carbon atoms, an alkylphenyl group having 1 to 9 carbon atoms, or a functional group expressed by the following general formula (II), “A” represents an alkylene group having 2 to 4 carbon atoms, “m” represents an average adduct molar number of alkylene oxide, a number of 1 to 20, in which the same alkylene oxide may be added alone, or a mixture of two or more types of alkylene oxide may be added, and “R 2 ” represents an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 1 to 9 carbon atoms, or hydrogen Ph—(CH 2 ) n —  (II) where “Ph” represents a phenyl group, and “n” represents an integer of 0 to 3.

What is claimed is:  
     
       1. An aqueous sheet metal deformation brightener composition comprising a compound (a) expressed by the following general formula (I) and a surfactant (b) 
       
         
           R 1 —O—(AO) m —R 2   (I)  
         
       
       where R 1  represents an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, an alkylphenyl group having 1 to 9 carbon atoms in the alkyl group, or a functional group expressed by the following general formula (II),  
       A represents an alkylene group having 2 to 4 carbon atoms,  
       m represents an average adduct molar number of alkylene oxide, a number of 1 to 20, in which the same alkylene oxide may be added alone, or in a mixture of two or more types of alkylene oxide may be added, and  
       R 2  represents an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, or hydrogen  
       
         
           Ph—(CH 2 ) n —  (II)  
         
       
       where Ph represents a phenyl group, and n represents an integer of 0 to 3,  
       wherein the surfactant (b) is at least one surfactant selected from the group consisting of a nonionic surfactant and an anionic surfactant,  
       wherein the nonionic surfactant is at least one compound selected from the group consisting of the following (1) to (5):  
       (1) polyoxyalkylene (p=1 to 40) alkyl or alkenyl (C 10  to C 22 ) ether,  
       (2) polyoxyalkylene (p=1 to 40) alkyl or alkenyl (C 10  to C 22 ) phenyl ether;  
       (3) polyoxyalkylene (p=0.5 to 40) alkyl or alkenyl (C 10  to C 22 ) amine;  
       (4) polyoxyalkylene (p=0.5 to 50) alkyl or alkenyl (C 10  to C 22 ) amide;  
       (5) ethylene oxide/propylene oxide block adduct,  
       where p represents an average adduct molar number of alkylene oxide, and the alkylene oxide represents ethylene oxide, propylene oxide, butylene oxide, or a mixed adduct thereof,  
       and wherein the anionic surfactant is at least one compound selected from the group consisting of the following (6) to (12):  
       (6) straight chain alkylbenzenesulfonate having an alkyl group of 8 to 16 carbon atoms on average,  
       (7) alpha olefin sulfonate having 10 to 20 carbon atoms on average,  
       (8) dialkyl sulfosuccinic acid having an alkyl group having 4 to 10 carbon atoms or an alkenyl group having 4 to 10 carbon atoms,  
       (9) fatty acid lower alkyl ester sulfonate expressed by the following general formula (IV) or a sulfonated fatty acid compound                    
       where R 4  represents an alkyl group having 8 to 20 carbon atoms or an alkenyl group having 8 to 20 carbon atoms, Y represents an alkyl group having 1 to 3 carbon atoms or an ion selected from the group consisting of alkaline metal and alkanolamine salt, and Z represents an ion selected from the group consisting of alkaline metal and alkanolamine salt,  
       (10) alkyl sulfate having 10 to 20 carbon atoms on average,  
       (11) alkyl ether sulfate having a straight chain or branched chain alkyl group or alkenyl group having 10 to 20 carbon atoms on average, to which 0.5 to 8 moles ethylene oxide on average is added, and  
       (12) saturated or unsaturated fatty acid salt having 10 to 22 carbon atoms on average,  
       wherein the compound expressed by the general formula (1) is at least one compound selected from the group consisting of ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, ethylene glycol monopropyl ether, diethylene glycol monopropyl ether, triethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, ethylene glycol monohexyl ether, diethylene glycol monohexyl ether, ethylene glycol mono-2-ethyl hexyl ether, diethylene glycol mono-2-ethyl hexyl ether, ethylene glycol monophenyl ether, diethylene glycol monophenyl ether, triethylene glycol monophenyl ether, ethylene glycol monobenzyl ether, diethylene glycol monobenzyl ether, triethylene glycol monobenzyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, and a glycol ether compound having 4 or more carbon atoms in total for end ether residual groups of R 1  and R 2 .  
     
     
       2. The sheet metal deformation brightener composition according to claim  1 , further comprising 0.01 to 10 wt. % of a rust preventative 
       wherein the rust preventative is at least one rust preventative selected from the group consisting of carboxylic acids, esters, carboxylates, amines including dialkylamine, monophosphates including polyoxyethylene dodecyl alcohol phosphate and polyoxyethylene nonyl phenol phosphate, dicyclohexylamine nitrite, and sodium nitrire.  
     
     
       3. The sheet metal deformation brightener composition according to claim  1 , wherein a glycol portion of the glycol ether compound is formed by addition of at least one alkylene oxide selected from the group consisting of ethylene oxide and propylene oxide. 
     
     
       4. The sheet metal deformation brightener composition according to claim  1 , wherein an adduct molar number m of the alkylene oxide is in the range of 1 to 4. 
     
     
       5. The sheet metal deformation brightener composition according to claim  1 , wherein the nonionic surfactant is a compound expressed by the following general formula (III) 
       
         
           R 3 —O—(AO) p —H  (III)  
         
       
       where R 3  represents an alkyl group, an alkenyl group, a phenyl group, or an alkylphenyl group, each of which has 10 to 22 carbon atoms, A represents an alkylene group having 2 to 4 carbon atoms, and p represents an average adduct molar number of alkylene oxide, a number of 1 to 40, in which the same alkylene oxide may be added alone, or a mixture of two or more types of alkylene oxide may be added.  
     
     
       6. The sheet metal deformation brightener composition according to claim  5 , wherein polyoxyalkylene alkyl or alkenyl amine or amide is further added to the nonionic surfactant expressed by the general formula (III), and their ratio is the nonionic surfactant expressed by the general formula (III)/amine or amide=9/1 to 1/9 (by weight). 
     
     
       7. The sheet metal deformation brightener composition according to claim  1 , wherein a ratio of the compound (a) expressed by the general formula (I) to the surfactant (b) is in the range of 1/8 to 8/1 by weight, the compound (a) expressed by the general formula (I) and the surfactant (b) are contained in the range of 1 to 80 wt. % in total, and the remaining component is water. 
     
     
       8. An aqueous sheet metal deformation brightener composition comprising a compound (a) expressed by the following general formula (I) and a surfactant (b) 
       
         
           R 1 —O—(AO) m —R 2   (I)  
         
       
       where R 1  represents a functional group expressed by the following general formula (II),  
       A represents an alkylene group having 2 to 4 carbon atoms,  
       m represents an average adduct molar number of alkylene oxide, a number of 1 to 20, in which the same alkylene oxide may be added alone, or in a mixture of two or more types of alkylene oxide may be added, and  
       R 2  represents an alkyl group having 1 to 9 carbon atoms, an alkenyl group having 2 to 9 carbon atoms, or hydrogen  
       
         
           Ph—(CH 2 ) n —  (II)  
         
       
       where Ph represents a phenyl group, and n represents an integer of 0 to 3.  
     
     
       9. The sheet metal deformation brightener composition according to claim  8 , further comprising 0.01 to 10 wt. % of a rust preventative. 
     
     
       10. The sheet metal deformation brightener composition according to claim  8 , wherein the surfactant (b) is at least one surfactant selected from the group consisting of a nonionic surfactant and an anionic surfactant. 
     
     
       11. The sheet metal deformation brightener composition according to claim  10 , wherein the nonionic surfactant is at least one compound selected from the group consisting of the following (1) to (5): 
       (1) polyoxyalkylene (p=1 to 40) alkyl or alkenyl (C 10  to C 22 ) ether,  
       (2) polyoxyalkylene (p=1 to 40) alkyl or alkenyl (C 10  to C 22 ) phenyl ether;  
       (3) polyoxyalkylene (p=0.5 to 40) alkyl or alkenyl (C 10  to C 22 ) amine;  
       (4) polyoxyalkylene (p=0.5 to 50) alkyl or alkenyl (C 10  to C 22 ) amide;  
       (5) ethylene oxide/propylene oxide block adduct,  
       where p represents an average adduct molar number of alkylene oxide, and the alkylene oxide represents ethylene oxide, propylene oxide, butylene oxide, or a mixed adduct thereof.  
     
     
       12. The sheet metal deformation brightener composition according to claim  10 , wherein the nonionic surfactant is a compound expressed by the following general formula (III) 
       
         
           R 3 —O—(AO) p —H  (III)  
         
       
       where R 3  represents an alkyl group, an alkenyl group, a phenyl group, or an alkylphenyl group, each of which has 10 to 22 carbon atoms, A represents an alkylene group having 2 to 4 carbon atoms, and p represents an average adduct molar number of alkylene oxide, a number of 1 to 40, in which the same alkylene oxide may be added alone, or a mixture of two or more types of alkylene oxide may be added.  
     
     
       13. The sheet metal deformation brightener composition according to claim  12 , wherein polyoxyalkylene alkyl or alkenyl amine or amide is further added to the nonionic surfactant expressed by the general formula (III), and a ratio between the nonionic surfactant of general formula (III) and the amine or amide added ranges from 9/1 to 1/9 by weight. 
     
     
       14. The sheet metal deformation brightener composition according to claim  10 , wherein the anionic surfactant is at least one compound selected from the group consisting of the following (1) to (7): 
       (1) straight chain alkylbenzenesulfonate having an alkyl group of 8 to 16 carbon atoms on average,  
       (2) alpha olefin sulfonate having 10 to 20 carbon atoms on average,  
       (3) dialkyl sulfosuccinic acid having an alkyl group having 4 to 10 carbon atoms or an alkenyl group having 4 to 10 carbon atoms,  
       (4) fatty acid lower alkyl ester sulfonate expressed by the following general formula (IV) or a sulfonated fatty acid compound                    
       where R 4  represents an alkyl group having 8 to 20 carbon atoms or an alkenyl group having 8 to 20 carbon atoms, Y represents an alkyl group having 1 to 3 carbon atoms or an ion selected from the group consisting of alkaline metal and alkanolamine salt, and Z represents an ion selected from the group consisting of alkaline metal and alkanolamine salt,  
       (5) alkyl sulfate having 10 to 20 carbon atoms on average,  
       (6) alkyl ether sulfate having a straight chain or branched chain alkyl group or alkenyl group having 10 to 20 carbon atoms on average, to which 0.5 to 8 moles ethylene oxide on average is added, and  
       (7) saturated or unsaturated fatty acid salt having 10 to 22 carbon atoms on average.  
     
     
       15. The sheet metal deformation brightener composition according to claim  8 , wherein a ratio of the compound (a) expressed by the general formula (I) to the surfactant (b) is in the range of 1/8 to 8/1 by weight, the compound (a) expressed by the general formula (I) and the surfactant (b) are contained in the range of 1 to 80 wt. % in total, and the remaining component is water. 
     
     
       16. The sheet metal deformation brightener composition according to claim  9 , wherein the rust preventative is at least one rust preventative selected from the group consisting of carboxylic acids, esters, carboxylates, amines including dialkylamine, monophosphates including polyoxyethylene dodecyl alcohol phosphate and polyoxyethylene nonyl phenol phosphate, dicyclohexylamine nitrite, and sodium nitrite.